132311821 has 2 divisors, whose sum is σ = 132311822. Its totient is φ = 132311820.

The previous prime is 132311789. The next prime is 132311831. The reversal of 132311821 is 128113231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128255625 + 4056196 = 11325^2 + 2014^2 .

It is a cyclic number.

It is not a de Polignac number, because 132311821 - 2⁵ = 132311789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 132311792 and 132311801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132311831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66155910 + 66155911.

It is an arithmetic number, because the mean of its divisors is an integer number (66155911).

Almost surely, 2^132311821 is an apocalyptic number.

It is an amenable number.

132311821 is a deficient number, since it is larger than the sum of its proper divisors (1).

132311821 is an equidigital number, since it uses as much as digits as its factorization.

132311821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 22.

The square root of 132311821 is about 11502.6875555237. The cubic root of 132311821 is about 509.5649513050.

The spelling of 132311821 in words is "one hundred thirty-two million, three hundred eleven thousand, eight hundred twenty-one".